Make it easier for the reader to find the difference between the two options in the product catalog. Keep comparison fields, visuals and technical information in the same reading order.
Select the features that make the decision
Not all product data is of the same importance. Ask the sales team what features customers compare. Size, usage, and compatibility often precede the marketing slogan. Get areas that make only meaningful difference to a comparison table; don't upload the work of the detailed technical document to a single page.
Give the same location to the same data
If the product code is elsewhere on each page, the reader constantly re-searches. Set fixed locations for code, product name, and basic features. Specify empty spaces in a clear way that there is no relevant property instead of filling them with random information. Units and number typing follow the same rule; mixing centimeters and millimeters may not appear to be a visual problem, but it breaks the comparison.
Use photo scale consciously
Displaying products of different sizes of the same size can create false expectations. Support size with open data if visuals are not scaled. Separate the detail photo from the main product image. Do not allow decorations to compete with technical knowledge added to its environment; the catalog should be able to scan quickly during use.
Make a final check with a user task
Ask someone who isn't involved in the design to find two products that match the specific need. Record where they stand, what area they misinterpret, and what information is missing. See if the page works on its own instead of helping by explaining the question. Check also the print and PDF version; screen links are useless on the printed page, and the very small table is challenging in both environments.
